3d game using lingo

I am trying to create a web based 3d game using cinema 4d and DirectorMX 2004. The game is a racing game whereby the user can select a type of vehicle and race against the computer around a selected 3d track.

I am trying to find out how to make the computer control the other vehicles so that they race against the user. If anyone has a knowledge of Lingo and can help it would be greatly appreciated.